ActiveXperts Network Monitor supports SNMP based checks.It ships with free SNMP GET and SNMP TRAP utilities. It also offers many SNMP scripts (PowerShell and VBScript).

Use ActiveXperts Netork Monitor to monitor your virtualization servers, domains, computers and devices. It runs on a single Windows server, without agents required on the monitored systems. It has many built-in checks and also allows administrators to create custom checks using PowerShell, VBScript and SSH.

MADGERSW-MIB by vendor Madge Networks Inc

MADGERSW-MIB file content

Most network devices and programs ship with so-called MIB files to describe the parameters and meanings (i.e.: friendly names) which are available for monitoring via SNMP.
ActiveXperts Network Monitor can import vendor-specific MIB files, so it can be used to monitor specific OID's (Object Identifiers).
This way, you can monitor your devices, computers, etc. by selecting your relevant OID's by name.